MOUNTAIN WEATHER FORECAST

Stevens Pass Mountain Weather Forecast

Day and Time:  Thursday 0630

Current Observations:

24hr Precipitation:  .06swe, 2” of snow

Temperature profile: 19 base, 15 ridges

Pass level winds: light easterly

Barometer:  low at 998mb’s

Sky: Broken clouds

Radar: moisture south of Yakima moving north.

The Forecast: Gusty east wind and light snow will develop today.  We can expect these light passing snow showers to continue through Saturday.  

Long Range:  Sunday and Monday will be cooler with more snow showers showing up on Tuesday.

  

The Science: The low pressure that has parked itself off the PNW coast will spin more bands of moisture up through the region again today.  The moisture is tracking up from the south which will split the Cascade Crest and drop most of the snow on the eastern slopes.

The general pattern will slowly shift to NW flow early next week which will keep snow in the conversation.    

Forecast confidence: Good.

Values from 4am today through

 4am tomorrow.

Precipitation: Today 24hr water: .25  snow: 1-3 Tomorrow’s 24hr water: .25  snow: 2-4 Trend and Timing: Light snow will begin today and fall through mid-day tomorrow.

Temperature: Low: 19   High: 26 Freezing level: +- 2500’ Trend and Timing:    Freezing levels west of the Pass will rise to 3000’ today.  Cool east flow will keep surface temperatures in the mid 20’s.

Winds Base: 5-10 E Ridge Top: 5-15 E Trend and Timing: Easterly winds will strengthen today.